13C-lutein is differentially distributed in tissues of an adult female rhesus macaque following a single oral administration: a pilot study

Sookyoung Jeon, Qiyao Li, Stanislav S. Rubakhin, Jonathan V. Sweedler, Joshua W. Smith, Martha Neuringer, Matthew Kuchan, John W. Erdman

Research output: Contribution to journalArticle

Abstract

Despite the growing awareness regarding lutein's putative roles in eyes and brain, its pharmacokinetics and tissue distribution in primates have been poorly understood. We hypothesized that 13C-lutein will be differentially distributed into tissues of an adult rhesus macaque (Macaca mulatta) 3 days following a single oral dose. After a year of prefeeding a diet supplemented with unlabeled lutein (1 μmol/kg/d), a 19-year-old female was dosed with 1.92 mg of highly enriched 13C-lutein. Tissues of a nondosed, lutein-fed monkey were used as a reference for natural abundance of 13C-lutein. On the third day postdose, plasma and multiple tissues were collected. Lutein was quantified by high-performance liquid chromatography–photodiode array detector, and 13C-lutein tissue enrichment was determined by liquid chromatography quadrupole time-of-flight mass spectrometry. In the tissues of a reference monkey, 12C-lutein with natural abundance of 13C-lutein was detectable. In the dosed monkey, highly enriched 13C-lutein was observed in all analyzed tissues except for the macular and peripheral retina, with the highest concentrations in the liver followed by the adrenal gland and plasma. 13C-lutein accumulated differentially across 6 brain regions. In adipose depots, 13C-lutein was observed, with the highest concentrations in the axillary brown adipose tissues. In summary, we evaluated 13C-lutein tissue distribution in a nonhuman primate following a single dose of isotopically labeled lutein. These results show that tissue distribution 3 days following a dose of lutein varied substantially dependent on tissue type.

Original languageEnglish (US)
Pages (from-to)102-108
Number of pages7
JournalNutrition Research
Volume61
DOIs
StatePublished - Jan 2019

    Fingerprint

Keywords

  • Biodistribution
  • Isotopic tracer
  • Lutein
  • Mass spectrometry
  • Rhesus macaque

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism
  • Endocrinology
  • Nutrition and Dietetics

Cite this